Coating material for a self-cleaning coating, and method for producing same
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Solution Overview
Problem
Conventional self-cleaning coatings for cooking, roasting, baking, or grilling devices have insufficient binding properties, leading to loose and unstable coatings, especially at high temperatures, and are costly due to complex production methods like sol-gel processes or flame pyrolysis.
Innovation Solution
A self-cleaning coating material using precipitated inorganic particles such as Al2O3, TiO2, or ZrO2 with a specific BET surface area of 200-500 m²/g, which provides improved adhesion and is produced more cost-effectively through precipitation reactions, allowing for better substrate bonding and retention of the porous structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If binder particles are produced using sol-gel process or flame pyrolysis, then the coating has self-cleaning properties, but the manufacturing cost increases and production complexity increases
Solution Approach 1:
The patent replaces expensive binder particles produced by sol-gel process or flame pyrolysis with inexpensive precipitated inorganic particles. These particles, though simpler and cheaper to produce, maintain the necessary functional properties for self-cleaning coatings while significantly reducing manufacturing costs and process complexity.
Solution Approach 2:
The patent changes the production method parameter from complex processes (sol-gel, flame pyrolysis) to a simpler precipitation process. By adjusting parameters like particle size (0.1-10 μm) and specific surface area (5-50 m²/g) of the precipitated particles, the coating achieves self-cleaning properties without the high costs associated with conventional binder production methods.
2Reliability
If binder particles are produced using sol-gel process or flame pyrolysis, then the coating has self-cleaning properties, but the device complexity increases
Solution Approach 1:
The patent replaces complex production devices and processes (sol-gel reactors, flame pyrolysis equipment) with simple precipitation processes. This substitution dramatically reduces device complexity while maintaining the self-cleaning functionality through the use of readily available precipitated inorganic particles.
Solution Approach 2:
The patent extracts the essential functional requirement (self-cleaning property) from the complex binder production processes and achieves it through a simplified approach using precipitated particles with appropriate surface area and size characteristics, eliminating the need for complex production equipment.
3Ease of manufacture
If conventional binder particles are used, then the coating can be produced, but the bonding properties are insufficient and the coating becomes loose and unstable at high temperatures
Solution Approach 1:
The patent creates a composite coating system where precipitated inorganic particles serve as the binder matrix, combined with porous particles that provide structural integrity. This composite approach enhances bonding strength and thermal stability compared to conventional binder particles alone, preventing coating loosening at high temperatures.
Solution Approach 2:
The patent incorporates porous particles into the coating structure, which improve adhesion to the substrate and provide thermal stability. The porous structure allows for better mechanical interlocking and heat dissipation, preventing coating failure at elevated temperatures while maintaining production feasibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The coating material achieves enhanced adhesion and stability at high temperatures, reducing production costs and ensuring effective removal of food residues without mechanical action, with improved processing ease and efficiency.
Implementation Method 1
the binder consists of precipitated, inorganic particles selected from the group comprising Al2O3, TiO2, ZrO2 or mixtures thereof, wherein the precipitated, inorganic particles are porous particles having a specific BET surface area of 200-500 m2/g
Implementation Method 2
self-cleaning coating on a part on or in a cooking, roasting, baking or grilling appliance for removing food residues without mechanical action
Implementation Method 3
the coating has a structure of (a) porous particles A and (b) a binder
Data Source
AI summary
The invention relates to a coating material which is suitable for a self-cleaning coating on a part on or in a cooking, frying, baking, or grilling device in order to remove food residue without mechanical influence, wherein the coating material has porous particles and a binder, and the binder has precipitated inorganic particles. The invention additionally relates to a method for producing a self-cleaning coating on a part on or in a cooking, frying, baking, or grilling device, having the steps of applying a coating material according to the invention onto at least one surface of the part.